How to service and repair the vacuum brake booster on Ford Focus?

Start vacuum brake booster servicing by taking out the hydraulic control unit (HCU) and disconnecting the electrical connector of the speed control actuator. The next step requires removing speed control actuator bolts before setting the actuator to the side while tightening all bolts to 9 Nm (80 inch lbs.) when reinstalling. The car's evaporative emission canister purge valve needs removal during servicing when operating on PZEV vehicles. Disconnect the pin-type retainer of the heater hose bracket from the cowl because after that remove the brake master cylinder. The installation requires switching out all electrical connectors after disconnecting them while twisting the switches loose. The list includes speed control deactivation switch (if equipped) alongside stop lamp switch and clutch pedal position (CPP) switch for manual transmission vehicles. The brake booster actuating rod disconnection begins with working the brake pedal to free up the brake pedal tab and removing the brake booster actuating rod pin for disposal. When reinstalling the brake boosters it is essential to tighten the retaining nuts to 23 Nm (17 ft. lbs.). Before installation place a new brake booster actuating rod pin properly within the bulkhead rubber boot along with the brake booster gasket followed by correct placement of the brake booster actuator rod. The brake system bleeding should be performed once you have completed the uninstall process.

OEM Ford Focus Brake Booster

Brake Power Booster

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8 Brake Boosters found

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Ford Focus Brake Booster Part Number: BV6Z-2005-B
$239.81 MSRP: $398.18
You Save: $158.37 (40%)
Ships in 1-2 Business Days
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Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Manufacturer Note: When Replacing This Component, 2L523 Has To Be Replaced
- Replaces: BV6Z-2005-A, BRB-56
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2012-2018 Ford Focus | S, SE, SEL, Titanium | 4 Cyl 2.0 L FLEX, 4 Cyl 2.0 L GAS
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Ford Focus Brake Booster Part Number: CV6Z-2005-H
$338.13 MSRP: $550.00
You Save: $211.87 (39%)
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Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Replaces: BRB-107, BRB-66, CV6Z-2005-G, CV6Z-2005-D
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2012-2018 Ford Focus | Electric | BATTERY EV (EV/BEV)
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Ford Focus Brake Booster Part Number: F1FZ-2005-A
$215.99 MSRP: $346.00
You Save: $130.01 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2015-2018 Ford Focus | SE | 3 Cyl 1.0 L GAS
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Ford Focus Brake Booster Part Number: CV6Z-2005-J
$206.57 MSRP: $330.91
You Save: $124.34 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2016-2018 Ford Focus | RS | 4 Cyl 2.3 L GAS
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Ford Focus Brake Booster Part Number: BV6Z-2005-C
$185.49 MSRP: $294.55
You Save: $109.06 (38%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2013-2018 Ford Focus | ST | 4 Cyl 2.0 L GAS
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Ford Focus Brake Booster Part Number: 6S4Z-2005-AA
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Replaces: 5S4Z-2005-A
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2000-2008 Ford Focus | LX, S, SE, SES, Sony Limited Edition, ST, SVT, ZTS, ZTW, ZX3, ZX4, ZX4 ST, ZX5, ZXW | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS
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Ford Focus Brake Booster Part Number: 9S4Z-2005-A
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Booster Assembly
- Manufacturer Note: When Replacing This Component, 2L523 Has To Be Replaced
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2009-2011 Ford Focus | S, SE, SEL, SES | 4 Cyl 2.0 L GAS
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Ford Focus Booster Assembly Part Number: 2M5Z-2005-EA
Product Specifications
- Other Name: Booster Assembly - Brake; Power Brake Booster; Brake Booster
- Manufacturer Note: With Advance Trac IVD
- Warranty: This genuine part is guaranteed by Ford's factory warranty.
Fits the following Vehicles:
- 2004 Ford Focus | LX, SE, SVT, ZTS, ZTW, ZX3, ZX5 | 4 Cyl 2.0 L GAS, 4 Cyl 2.3 L GAS

Ford Focus Brake Booster

OEM Brake Booster boasts unmatched quality. Each part goes through full quality checks. They adhere to Ford's official factory standards. These steps remove flaws and inconsistencies. So you can get Brake Booster with long life and a perfect fit. Come to our website and find genuine Ford Focus parts. We keep a wide inventory of OEM Focus parts at the highly affordable prices. It's easy to search, compare, and pick what you need. You'll love the clear info and simple checkout. We offer top-rated customer service, and we reply fast. We also ship promptly to ensure your order arrives on time.

The Brake Booster is a complex system used in the Ford Focus cars to improve the braking system since it will require minimal effort from the driver. It works at its premier through a vacuum mechanism which helps to magnify the force applied on the brake pedal and transfers it to the master cylinder. This system depends on engine vacuum in its operation and this means that the engine should be running for this system to function. From the above discussion it is evident that Ford Focus models have used various types of brake boosters, mainly the vacuum operated and hydraulic booster. vacuum boosters are normally used, but can sometimes fail while hydraulic boosters employ the pressure of a fluid as an aid. The potential of single and dual diaphragm designs and different diameter sizes provides an opportunity for liquids to be optimised depending on their performance requirements especially in cases of disc or drum break systems.

Ford Focus Brake Booster Parts and Q&A

Brake Booster
6S4Z-2005-AA
Q: How to service and repair the vacuum brake booster on Ford Focus?
A:
Start vacuum brake booster servicing by taking out the hydraulic control unit (HCU) and disconnecting the electrical connector of the speed control actuator. The next step requires removing speed control actuator bolts before setting the actuator to the side while tightening all bolts to 9 Nm (80 inch lbs.) when reinstalling. The car's evaporative emission Canister Purge Valve needs removal during servicing when operating on PZEV vehicles. Disconnect the pin-type retainer of the heater hose bracket from the cowl because after that remove the Brake Master Cylinder. The installation requires switching out all electrical connectors after disconnecting them while twisting the switches loose. The list includes speed control deactivation switch (if equipped) alongside stop lamp switch and clutch pedal position (CPP) switch for manual transmission vehicles. The brake booster actuating rod disconnection begins with working the brake pedal to free up the brake pedal tab and removing the brake booster actuating rod pin for disposal. When reinstalling the brake boosters it is essential to tighten the retaining nuts to 23 Nm (17 ft. lbs.). Before installation place a new brake booster actuating rod pin properly within the bulkhead rubber boot along with the brake booster gasket followed by correct placement of the brake booster actuator rod. The brake system bleeding should be performed once you have completed the uninstall process.